Updated footer year from 2022 to 2023 in README.md#35474

UmerAmin21 wants to merge 1 commit intoibm-developer-skills-network:masteribm-developer-skills-network/jbbmo-Introduction-to-Git-and-GitHub:masterfrom

UmerAmin21:bug-fix-revertUmerAmin21/jbbmo-Introduction-to-Git-and-GitHub:bug-fix-revertCopy head branch name to clipboard